元音字母和元音音素是那些?

元音字母和元音音素是那些?

元音字母是指语言里起着发声作用的字母，是为元音字母。英语的26个字母中有5个元音字母分别是： A a [ei]、  E e [i：] 、 I i [ai]、O o [au]、U u [(j)u：]，其他都是辅音字母。
音素：人说话的声音是由若干单个的音组成的，即使是一个很短的字、词也是由一定的读音组成的。英语把组成一个读音的最小单位叫音素。音素有48个，8个元音音素及发音规则 元音 /α:/、/כ/、/כ:/、/u/、/u:/、/∧/、/∂/、/∂:/ 
20个元音音素对应元音音素例子
1) [i:] sea, he, see, piece, ceiling 
2) [i]sit, build, miss, myth 
3) [e] bed, desk, head, 
4) [ ae] bad, land, bank, stamp (a和e中间是连起来的) 
5) [a:] car, fast, class, plant, calm, aunt 
6) [ ɔ] hot, want 
7) [ ɔ:] door, more, sport, ball, warm, author, court, bought, caught 
8) [u:] good, who, blue, soup, 
9) [u] look, put, women, could 
10) [ ʌ] cup, come, blood, rough 
11) [ ə:] girl, work, serve, nurse 
12) [ə ] cadre, ago, forget, polite, dollar, doctor, famous, Saturday 
13) [ei] cake, they, play, eight, great, 
14) [ai] bike, die, neither, light, try, find, height, eye 
15) [əu ] phone, cold, boat, soul, grow 
16) [au] house, town 
17) [ɔi ] boy, oil 
18) [iə ] dear, idea, deer, here, fierce, 
19) [ɛə ] pear, care, there, fair 
20) [ uə] tour, poor,

元音字母a e i o u 元音音素：应该就是原因组成的因素，可以是一个字母也可以是多个，bad中a是一个字母组成的元音音素，good是两个o组成的元音音素

元音因素指的是元音字母或组合在单词当中的发音。追答8个元音音素及发音规则 元音 /α:/、/ /、/ :/、/u/、/u:/、/∧/、/ /、/ :/
20个元音音素对应元音音素例子
1) [i:] sea, he, see, piece, ceiling
2) [i]sit, build, miss, myth
3) [e] bed, desk, head,
4) [ ae] bad, land, bank, stamp (a和e中间是连起来的)
5) [a:] car, fast, class, plant, calm, aunt
6) [ ] hot, want
7) [ :] door, more, sport, ball, warm, author, court, bought, caught
8) [u:] good, who, blue, soup,
9) [u] look, put, women, could
10) [ ] cup, come, blood, rough
11) [ :] girl, work, serve, nurse
12) [ ] cadre, ago, forget, polite, dollar, doctor, famous, Saturday
13) [ei] cake, they, play, eight, great,
14) [ai] bike, die, neither, light, try, find, height, eye
15) [ u ] phone, cold, boat, soul, grow
16) [au] house, town
17) [ i ] boy, oil
18) [i ] dear, idea, deer, here, fierce,
19) [ ] pear, care, there, fair
20) [ u ] tour, poor,